%0 Conference Paper %A Ur Rehman, M.Z. %A Baharudin, Z. %A Zakariya, M.A. %A Khir, M.H.M. %A Khan, M.T. %D 2013 %F scholars:3847 %I IEEE Computer Society %K Bandpass filters; Frequency response; Microwave circuits; Poles; Resonators, Design concept; High quality factors; Microwave bandpass filter; QMSIW; Region of interest; Resonator structures; Return loss; Simulated response, Substrate integrated waveguides %P 172-175 %R 10.1109/RFM.2013.6757242 %T Microwave bandpass filter using QMSIW %U https://khub.utp.edu.my/scholars/3847/ %X A planar bandpass filter based on a technique that utilizes quarter mode of substrate integrated waveguide (SIW) is presented. This concept reduces the circuit foot print of SIW to a quarter of its size, along with miniaturization good performance and high quality factor is maintained by the structure. The design concept for single-pole resonator structure is presented; and by coupling the resonators a two-pole substrate integrated waveguide bandpass filter is achieved for the frequency of 5.9 GHz. The results show that the filter insertion losses are better than 2 dB and return losses are less than 20 dB. The measured frequency response is in good agreement with the simulated response in the region of interest. © 2013 IEEE. %Z cited By 2; Conference of 2013 5th IEEE International RF and Microwave Conference, RFM 2013 ; Conference Date: 9 December 2013 Through 11 December 2013; Conference Code:104251